powerful

From Wiktionary

Pronunciation[change]

Adjective[change]

Positive
powerful

Comparative
more powerful

Superlative
most powerful

Powerful is on the Academic Vocabulary List.
  1. If someone (or something) is powerful, they have much power.
    The king is a very powerful man.
    Big guns are powerful weapons.
    A tiger is powerful animal.
    The train has a powerful engine.